Answer to Question #177576 in Organic Chemistry for antria

Question #177576

which is better base and why? -C(trible bond)-N or CH3O- ?


1
Expert's answer
2021-04-02T05:12:45-0400

In -C"\\equiv"N both atoms are sp hybridized. The nitrogen's electron pair dwells very close to the nucleus in a sp orbital thus being very unaccesible. Therefore, this is a very weak base. On the other hand, CH3O is the conjugate base of methanol CH3OH. Methanol does not dissociate in water i. e. it is a very weak acid. Therefore, CH3O is a strong base.


Answer: CH3O is a better base.

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